class Circle
{
	double radius;
	double diameter;
	
	public Circle (double radius, double diameter)
	{
		this.radius=radius;
		this.diameter=diameter;
		
	}
	
	
	public double getArea()
	{
		double area=Math.PI * radius * radius;
		return area;
	}
	
	public double getCRadius()
	{
		double c=Math.PI * 2 * radius;
		return c;
	}
	
	public double getCDia()
	{
		double c=Math.PI * diameter;
		return c;
	}
}